Is Time Restricted Eating (TRE) a practical way to help people lose weight?

Time Restricted Eating as a weight loss intervention in obese adults: A pilot study

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN16400313

Enrollment

Registered

2017-11-14

Start date

2018-02-01

Completion date

Unknown

Last updated

2023-01-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Obesity Nutritional, Metabolic, Endocrine Obesity

Interventions

Eligible participants are asked to attend an appointment with the study team in which they are asked to complete a routine clinic questionnaire and complete a questionnaire on physical activity levels

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Aged over 18 years 2. BMI over 30 kg/m2, or over 28 kg/m2 with comorbidities 3. Speaks, reads, and understands English

Exclusion criteria

Exclusion criteria: 1. A Medical condition precluding fasting, including a history of eating disorders 2. Has a serious illness 3. Currently on psychiatric medication 4. Pregnancy or breastfeeding 5. Has lost more than 5% of body weight in the last 6 months 6. Is currently using TRE or another fasting approach to weight loss

Design outcomes

Primary

Measure	Time frame
1. Adherence to TRE will be measured by asking participants to complete a questionnaire on how many days they completed the intervention. Adherence will be monitored weekly for 6 weeks, then a final adherence rating taken at week 12. 2. Estimates of effect size for future randomised trials, will be obtained using the mean weight change of TRE at 6 weeks and 3 months	—

Secondary

Measure	Time frame
1. Weight is measured using digital scales in kilograms at the baseline visit, weeks 1, 6 and 12. Self-reported weight will be asked at weeks 2-5. 2. Blood Pressure is measured using an Omron blood pressure monitor at the baseline visit and week 12 3. Lipid profile measured using a blood sample given by the participant at the baseline visit and week 12 4. Difficulty adhering to TRE and hunger ratings are measured on a questionnaire weekly from baseline to week 6, then again at week 12 5. Helpfulness of the intervention, TRE difficulty, readiness to continue, 8 hour eating time frames and ratings of hunger will be measured through participant feedback every week for 6 weeks and at week 12. Recommending TRE to friends will be asked at week 12. Participants will have the opportunity to use free text to give feedback about barriers and facilitators of TRE at week 1 and 6.	—

Measure

Time frame

1. Weight is measured using digital scales in kilograms at the baseline visit, weeks 1, 6 and 12. Self-reported weight will be asked at weeks 2-5. 2. Blood Pressure is measured using an Omron blood pressure monitor at the baseline visit and week 12 3. Lipid profile measured using a blood sample given by the participant at the baseline visit and week 12 4. Difficulty adhering to TRE and hunger ratings are measured on a questionnaire weekly from baseline to week 6, then again at week 12 5. Helpfulness of the intervention, TRE difficulty, readiness to continue, 8 hour eating time frames and ratings of hunger will be measured through participant feedback every week for 6 weeks and at week 12. Recommending TRE to friends will be asked at week 12. Participants will have the opportunity to use free text to give feedback about barriers and facilitators of TRE at week 1 and 6.

—

Countries

England, United Kingdom

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026